Posted 2016-08-15 4:48 PM (#168031 - in reply to #168030) Subject: RE: water heater
Extreme Veteran
Posts: 448
Location: Los Angeles, Ca.
normal...should stop after a bit. if excessive, replace the relief valve.
As the water heats up, it expands and if no hot water tap is open, the relief valve prevents too much pressure from building up,